<template>
  <div class="login_container">
    <div class="login_box">
      <!--  头像区域    -->
      <div class="avatar_box">
        <img src="../assets/logo.png">
      </div>
      <!--  登录表单区域    -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!--    用户名    -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!--    密码    -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
        </el-form-item>
        <!--   按钮区     -->
        <el-form-item class="btns">
          <el-button type="primary" :plain="true" @click="login">登录</el-button>
          <el-button type="info" :plain="true" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 1,
            max: 10,
            message: '用户名长度在 1 到 10 个字符',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 1,
            max: 16,
            message: '密码长度在 1 到 16 个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return false
        const { data: res } = await this.$http.post('login', this.loginForm)
        // 提示失败
        res.meta.status !== 200 ? this.$message.error(res.meta.msg) : this.$message.success(res.meta.msg)
        // this.$message({
        //   showClose: true,
        //   message: res.meta.msg,
        //   type: res.meta.status !== 200 ? 'error' : 'success'
        // })

        // 保存token到session
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>
<!--scoped只在当前style生效-->
<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }

  .btns {
    position: relative;
    right: 30%;
    //transform: translate(-50%,50);
    display: flex;
    justify-content: flex-end;
  }
}
</style>
